Modelling Approach

AIM’s architecture contains a set of integrated modules of the key elements relevant to the project goal. These modules are under development within AIM and build upon existing, proven capabilities within the Institute for Aviation and the Environment.

These modules are under development within AIM (currently using a 2005 base year) and build upon existing, proven capabilities within IAE. Futher information can be obtained by clicking on any of the modules.

Strengths of AIM's Architecture

The modular architecture being pursued for AIM has many significant strengths:

Policy Assessment
Each module provides an input site for candidate “policy levers” that manipulate the evolution of the air transportation system and hence allows an assessment of their environmental and economic impacts. Other types of policy options affect multiple modules simultaneously, such as emissions trading impacts on taxation/charges, technology and operations.

Tailored Resolution
The temporal and spatial resolution of each module can be tailored to the application being considered. For example, in order to run the full integrated model within a reasonable time, annual/regional aggregate input data and first-order module definitions might be appropriate. More detailed regional assessments over shorter timeframes can be accommodated with appropriate input data and higher-order module definitions. Only a subset of modules need be run if the complete set is not required for the application being considered.

Module Substitution
Module definitions from other developers can be substituted to examine their interactions within the wider integrated structure (subject to appropriate interfaces existing).

Future Growth PotentialThe modular architecture allows natural growth and extension of capabilities. Subsequent phases of AIM development will focus on expanding its capabilities in line with needs, for example to include modelling of multi-modal passenger decision options or to capture emerging trends in air transportation system evolution (e.g. future regional demand or very light jet/air taxi growth.